JPH09120450A - Image processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an inflection point from being imaged unnaturally when two adjacent lines having an acute angle and a thick line are to be drawn. SOLUTION: When the start point, >=1 inflection point, end point, and width of the thick line are specified through a display and coordinate indication part, an area signal generation part 209 of an image processing part 102 generates an area signal for a quadrangular area so that the start and end point are in the center of the quadrangular area in the width direction and the inflection points are vertexes of the quadrangular area according to adjacent straight lines and a direction of rotation. The area signal generation part 209 also generates an are making the inflection points smooth, generates and stores the horizontal-scanning directional start point position and end point position of one area including a quadrangular area adjusting to the area, and generates an area signal which becomes active between the start point position and end point position.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a straight line connecting a start point and a refraction point, a straight line connecting a refraction point and a refraction point based on a start point, one or more refraction points, an end point and a width of an input thick line. The present invention relates to an image processing device that draws a thick line by creating a plurality of quadrilateral regions corresponding to an input width and a straight line connecting the end point.

[0002]

2. Description of the Related Art Generally, as shown in FIG. 29A, when an arbitrary area 302 is designated on a document 301 by a coordinate designating section, an area signal for discriminating the inside of the designated area and the outside of the designated area is generated. Therefore, a bit map memory in which one bit or several bits of memory correspond to one dot of the original is used. In this case, the capacity of the bit map memory increases in accordance with the amount of information in the area, and several bits of the memory are required for one dot of the original document. You need a bit.

As a method of storing the area information in the bit map memory, for example, as shown in FIG. 29B, the data 303 of the starting point position and the ending point position of the area in the main scanning direction is written in the memory, and the hardware processing is performed. 29 (c)
There is known a method of generating an area signal which becomes active between a start point position and an end point position as shown in FIG. Specifically, when data having information of "1" as an area is stored in the bitmap memory, "1" is stored for the start point position and the end point position as shown in FIG. 29 (b). When is read out, the area signal for each line changes from L to H at the start point position and from H to L at the end point position, as shown in FIG.

Further, as shown in FIG. 30A, when two areas "1" and "2" overlap (area 401) and the processing contents of the areas "1" and "2" are different, for example, the area " When "1" is filled and area "2" is reversed, the bitmap memory stores data indicating the processing content at the start point position and end point position of each area as shown in FIG. 30 (b). To be done. Then, for example, FIG.
Area signals “2” and “1” of the n−4th line shown in FIG.
It becomes a signal like. Further, in the overlapping area 401, when the processing content of the area “2” is given priority, the overlapping area 401
In the section 405, the area signal 404 indicates the processing content of the area “2”.

In addition, as shown in FIG.
When the processing contents of the two areas 502 and 503 overlapping by 1 are the same, the processing contents are stored in the bitmap memory so that the processing contents cannot be distinguished as shown in FIG.
Therefore, in the section of the overlapping region 505, FIG.
The area signal does not become H as shown in FIG. 5, and therefore the overlapping area 501 is not processed.

A process of drawing a thick line in a device that generates such a region signal will be described. For example, FIG.
In the case of a thick zigzag line as shown in FIG. 2, it is possible to draw a thick line by treating the contour of each stroke (five in the figure) of the zigzag line as a region and filling the inside of the contour as shown in FIG. In this case, in FIG. 34, the start point 801, the inflection point 802, and the end point 80 of the two strokes are shown.
When 3 and the thickness W are input, the refraction point area is sharpened as shown in FIG. 35 (a) (901) to make the refraction point smooth, or flattened as shown in FIG. 35 (b). It is cut (illustrated 902) or rolled (illustrated 903) as shown in FIG. 36C.

The sharpening process will be described with reference to FIG. First, when connecting by two quadrangular areas whose center lines are lines connecting the designated three points with two straight lines, FIG.
As shown in, the image has an overlapping area 1001 at the connecting portion of the two rectangular areas. In this case, since the area signal is not generated in the connection portion as described above, it becomes blank. As a conventional method for correcting the blank, for example, Japanese Patent Publication No. 61-8434 and JP-A-6-168339.
As shown in the publication, the intersection of the extended line is simply calculated or calculated so as to be filled with a circle to correct it.

Since a recess 1002 is formed on this blank, the recess 1002 can be sharpened by obtaining the intersection of each straight line 1003 outside the two quadrangular areas as shown in FIG. .

[0009]

However, as shown in FIG.
When two straight lines AA ′ and BB ′ have sharp angles, as shown in FIG.
Is far from the designated points A ′ and B, which causes an unnatural image.

Further, when a new refraction point area is created in order to make the refraction point smooth, a blank occurs when the start point position and the end point position of each area in the main scanning direction are stored and an area signal is generated. There is a problem of doing.

In view of the above-mentioned conventional problems, the present invention is capable of preventing an image having an unnatural refraction point from being formed when a thick line having an acute angle between two adjacent lines is drawn. The purpose is to provide a device.

According to the present invention, even if a refraction point area is newly created in order to smooth the refraction point when the start point position and the end point position of each area in the main scanning direction are stored and the area signal is generated, it is blank. An object of the present invention is to provide an image processing device capable of preventing the occurrence of the above.

[0013]

In order to achieve the above-mentioned object, the first means is to form a straight line connecting the starting point and the refracting point based on the starting point, one or more refracting points, the ending point and the width of the input thick line, In an image processing device that draws a thick line by creating a straight line connecting a point and a refraction point, a straight line connecting a refraction point and an end point, and a plurality of quadrangle regions according to the input width, the start point and the end point are the width direction of the quadrangle region. It is characterized by including a quadrangle region creating means for creating the quadrangle region so that it is at the center and the refraction point is at the apex of the quadrangle region based on the rotation direction of the adjacent straight line.

The second means is to start the input thick line, 1
Create multiple quadrangular areas according to the input width and the line connecting the start point and the refraction point, the line connecting the refraction point and the refraction point, and the line connecting the refraction point and the end point based on the above refraction point, end point, and width In an image processing device that draws thicker lines with
A position creating unit that creates a region for smoothing the refraction point and creates a start point position and an end position in the main scanning direction of one region including a rectangular region adjacent to this region, and the position creating unit. The area signal is activated by the storage means for storing the start point position and the end point position, and the area signal generation means for generating the area signal which becomes active between the start point position and the end point position stored in the storage means. The feature is that a thick line is drawn by drawing a section.

In a third means, in the second means, the position creating means traces the contour line of a rectangular area adjacent to the area where the inflection point is smoothed, so that the position of one area including these areas is detected. It is characterized in that a start point position and an end point position in the main scanning direction are created.

A fourth means is an image processing apparatus which comprises a reading means for photoelectrically reading an original image and a display means for displaying the image read by the reading means, and which performs a predetermined process and outputs the image. First input means for inputting a starting point, a bending point and an ending point of the line as a position of the line for drawing a line having a thickness with respect to the image displayed on the displaying means, and the starting point of the line, First storage means for storing position information of the bending point and the end point, second input means for inputting line thickness information, and second storage means for storing the line thickness information, Calculation means for performing calculation based on the information stored in the first and second storage means, and calculating a region of a line having a thickness connecting a point input by the first input means with a straight line; Image processing is performed on the area. Characterized in that it comprises an image processing means for.

A fifth means is characterized in that the calculating means in the fourth means creates an area by combining a plurality of areas.

The sixth means is the fourth or fifth means,
After a region is created by combining a plurality of regions, a tracking unit that tracks the contour to integrate into a single region, and a changing unit that changes the data while tracking by the tracking unit are provided. And

[0019]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a block diagram showing an embodiment of an image processing apparatus according to the present invention, FIG. 2 is a block diagram showing a digital copying machine equipped with the image processing apparatus of FIG. 1, and FIG.
5 is a flow chart for explaining the sharpening process of the inflection point of the thick line, FIG. 4 is an explanatory view showing the designated coordinates of the thick line, FIG.
Is an explanatory view showing a connecting direction of a straight line by the designated coordinates in FIG.
6 is an explanatory view showing the rotation direction of the straight line by the designated coordinates in FIG. 4, FIG. 7 is an explanatory view showing the relationship between the designated coordinates in FIG. 4 and the rectangular area, and FIG. 8 is a relationship between the other designated coordinates and the rectangular area. Explanatory drawing, FIG. 9 is an explanatory drawing comparing the refraction angles of the conventional example and this example, FIG. 10 is an explanatory view showing the thick line in the case of FIG. 7, and FIG.
1 is an explanatory view showing a thick line in the case shown in FIG.

Further, FIG. 12 is a flow chart for explaining the rounding processing of the inflection point of the thick line, FIG. 13 is an explanatory view showing the designated coordinates of the thick line, and FIG. 14 is a quadrangle region when the number of designated straight lines is an even number. And FIG. 15 and FIG. 16 show FIG.
3 is an explanatory view showing a rounding area for the image of FIG. 3, FIG.
6 and 7 are timing charts showing the region signals of the rounding region of FIG. 6, FIGS. 18 and 19 are explanatory diagrams showing the rounding region when the number of designated straight lines is an even number, and FIG. 20 shows a square region when the number of designated straight lines is an even number. Explanatory drawing, FIG. 21 is an explanatory view showing a refraction point,
22 is an explanatory view showing a region when the refraction points of FIG. 21 are flattened, FIG. 23 is an explanatory view showing a thick line where the refraction points are flattened, and FIG. 24 is a contour line of the region of FIG. FIG. 25 is an explanatory diagram showing data, FIG. 25 is an explanatory diagram showing a method of tracing the contour line data of FIG. 24, FIG. 26 is an explanatory diagram showing a case where tracing is not possible, and FIG. 27 is an explanatory diagram showing end point data.
FIG. 28 is an explanatory diagram showing in detail the case where tracking is not possible in FIG.

The copying machine shown in FIG. 2 is a scanner 101 for reading image data of a color original as digital data.
An image processing unit 102 for performing processing such as processing on image data read by the scanner 101, an operation unit 103 for instructing a procedure by which the image processing unit 102 performs processing, and a processing result. The display / coordinate designating unit 104 has a display / coordinate designating unit 104 for displaying and designating an area to be processed. The display / coordinate designating unit 104 is composed of, for example, a tablet.

The copying machine also includes a storage unit 1 for temporarily holding image data processed by the image processing unit 102.
05, a CPU 106 for controlling the entire copying machine, and C
It has a ROM 107 in which parameters and control procedures for the PU 106 to perform control are stored in advance, and a printer 108 for printing out the processing result. Storage unit 1
05 image data memory 105a and its write / read circuit.

As shown in FIG. 1, the image processing unit 102 processes the R (red), G (green) and B (blue) input signals read by the scanner 101 and outputs Y (yellow) to the printer 108. ), M (magenta), C
It is configured to output (cyan) and K (black) signals.

In FIG. 1, the scaling unit 201 is a scanner 1
The R, G, and B signals read by 01 are magnified in the main scanning direction, and the RGBγ correction unit 202 magnifies the R, G, and B gray balances by the magnifying unit 201 and the scanner 10.
The γ conversion characteristic of 1 is corrected. The RGB filter 203 is an RGB filter for correcting blur of the lens system of the scanner 101.
The R, G, and B signals corrected by the γ correction unit 202 are converted into M
The TF correction (sharpening) is performed, and the create unit 204 performs image processing on the R, G, and B signals corrected by the RGB filter 203 such as mirror, italic, shadow, hollow, paint, move, and bold line drawing. To do.

The color correction unit 205 converts the R, G, B signals processed by the create unit 204 into Y, M, C, K signals by using the primary masking method, and the CMYK filter 206 uses the color correction unit 205. Y, M, converted by
The C and K signals are corrected according to the MTF of the printer 108. The CMYKγ correction unit 207 is a YMCK filter 206.
The Y, M, C, and K signals corrected by
8 according to the γ characteristic, and the dither processing unit 208
Halftone processing of the Y, M, C, and K signals corrected by the YKγ correction unit 207 is performed and output to the printer 108.

The area signal generation unit 209 includes the above-mentioned units 201 to 201.
A signal indicating a processing area (area signal) is generated for 208, and in particular, the create unit 204 creates a thick line image by drawing pixels while the area signal is active.

Next, the process of sharpening the connecting portion will be described with reference to FIGS. In FIG. 3, for example, in FIG.
An N-shaped line as shown in (1) is designated by the start point A, the inflection points B, C, and the end point D, and when the thickness W is designated, these are stored (step S1). The thickness W may be specified by displaying lines of several types of thickness on the display unit 104 so that the operator can select one of them. Next, designated point A,
By connecting B, C, and D in the specified order, the lines AB, B-
C, C-D are obtained (step S2), then the connecting directions A → B, B → C, C → D of these lines are obtained as shown in FIG. 5 (step S3), and then as shown in FIG. Based on these connection directions A → B, B → C, C → D, the refraction directions at the refraction points B and C, that is, whether the rotation direction of a straight line adjacent to the refraction points B and C is clockwise or counterclockwise is determined ( Step S4). In this example, the lines A-B and B-C are clockwise, and the lines B-C and C-D are counterclockwise.

Then, as shown in FIG. 7, the connection direction A → B.
The square is formed so that the starting point A is located at the center 1501 of the tip side and the inflection point B is located at the outer vertex.
Further, a quadrangle is created so that both the inflection points B and C are located at the outer vertices in the connecting direction B → C, that is, the line BC is a diagonal line, and the inflection point C is formed in the connecting direction C → D. Is located at the outer corner and the end point is located at the center 1502 of the trailing edge side (step S).
5). Here, as shown in FIG. 8, when the lines B-C and C-D are clockwise, a quadrangle is created such that the inflection points B and C are the outer sides of the line B-C.

Then, a contour line is obtained based on the vertices of the quadrangle and the designated points (step S6). Here, when the line B-C is a quadrangle that is a diagonal line, the point 1503 on the side that intersects each quadrangle of the lines A-B and C-D is obtained, and the overlapping region with the adjacent quadrangle is obtained. Then, the start point and the end point of the area signal are generated in the overlapping area, and the start point and the end point of the area signal are generated outside the overlapping area so as not to occur, and are stored in the bitmap memory as area data ( Step S7). Therefore, as shown in FIGS. 9 to 11, even if the angles of the lines A-B and B-C are sharp, it is possible to prevent the connection point from coincident with the designated point B and being unnaturally jagged.

Next, the rounding process will be described with reference to FIGS. In this rounding process, the same process is performed on a plurality of regions. First, in FIG. 12, an inverted V-shaped line is designated by the start point A, the inflection point B, and the end point C as shown in FIG. 13, for example. When the thickness W is designated (step S11), the designated point A, B, C and the number n of lines connecting these and the thickness W are stored (step S12).
Next, in FIG. 13, the lines A-B and B-C connecting the designated points are obtained as shown by the broken lines (step S13), and then the two lines A-B and B-C as the center lines are shown as solid lines. A quadrangle is obtained (step S14).

The number n of lines connecting the designated points A, B and C
Is an even number (step S15), the three areas "1" to "3" are used in the case of an even number (step S16) as described later, while the four areas are included in a case of an odd number. "1" to "4" are used (step S17). The case of an even number will be described with reference to FIGS. 14 to 17. In step S16, for example, as shown in FIG.
In the case of four closed loops A-B-C-D-A, the first quadrangle of line A-B is area "1", the second quadrangle of line B-C is area "2", line Consider area "1" as the third quadrangle of CD and area "2" as the fourth quadrangle of line D-A (step S18).

Then, as shown in FIG. 15, the designated point A,
The diameter w centered on B, C and D is calculated so as to match the width W of the quadrangle, and the circular area of the connection points of these quadrangle is set as the area "3" (step S19). Therefore, FIG.
When the inverted V shape shown in FIG. 3 is designated, it is composed of three areas “1” to “3” as shown in FIG. 16, and the areas “1” to “3” in the m-th line of this image. The signals are three types of signals 2401 as shown in FIG. Then, the area signal 24 that indicates the start point position and the end point position in the main scanning direction of one area including the area of these signals 2401.
02 is generated (step S20), and this area signal 240
The areas "1" to "3" can be filled with the same color by setting the setting so that all the sections "1" to "3" of 2 are filled with the same color.

Next, the case of an odd number will be described with reference to FIGS. Here, for example, in the case where the number n is 3 and the closed loop is ABCA as shown in FIG. 18, as in the case of an even number, the area “1” is set as the first quadrangle of the line AB. , The area “2” as the second quadrangle of the line B-C and the area “1” as the third quadrangle of the line C-A, both the first and the third quadrangle are the area “1”. Therefore, no area signal is generated in the overlapping area 2501.

Therefore, in the case of an odd number, as shown in FIG. 19, area "1" and line B are defined as the first quadrangle of line AB.
Considering the area “2” as the second quadrangle of −C, the area “3” as the third quadrangle of the line C-A, and the circular area of each connection point of these quadrangles as the area “4”, the area signal is Can be generated.

According to this method, the four areas "1" to "4" can be used even when the number is even.
That is, as shown in FIG. 20, in the case where the number n is four and the closed loop A-B-C-D-A, the first quadrangle of the line D-A is the area "1" and the line A-B is the first quadrangle. Area "2" as a quadrangle of 2, area "3" as a third quadrangle of line BC, area "2" as a fourth quadrangle of line CD,
Considering the circular area of each connection point of these quadrangles as area "4", an area signal can be generated.

Next, the flat cutting process will be described with reference to FIGS. First, as shown in FIG. 21, the area “1” and the line B are similarly defined as the first quadrangle of the line AB.
If the area is “2” as the second quadrangle of −C, a concave portion is generated in the connection portion surrounded by the broken line. So, first,
As shown in FIG. 22, the recessed area surrounded by the apex a of the area "1", the apex c of the area "2", and the intersection of the areas "1" and "2" is defined as the area "3". In addition,
Since the area signal can be generated by the above-described processing for the area B where the areas "1" and "2" overlap, the processing for generating the area signal for the area "3" will be described.

When the vicinity of the area "3" shown in FIG. 23 is enlarged and shown in FIG. 24, for the area "1", the contour line (start point, end point) data indicated by white circle is written in the bit map memory, and Data indicated by a mesh circle is written in the area "2", and data indicated by a black circle is written in the area "3". Then, the contour line is traced based on the start point and end point data thus written in the bitmap memory. The contour tracing is started from the first designated point.

Further, as shown in FIG. 25, the data search direction is changed according to the directions of designated lines (rectangular center line) 3205 and 3206 and the tracking direction. In the example shown in FIG. 25, arrow 3201: −1 in the sub scanning direction, + direction in the main scanning direction Arrow 3202: +1 in the sub scanning direction, + direction in the main scanning direction Arrow 3203: −1 in the sub scanning direction, main scanning -Direction to direction Arrow 3204: change to +1 in the sub-scanning direction and-direction to the main-scanning direction.

When the search methods are distinguished, when tracing is performed in the same direction as the directions 3205 and 3206 of the straight line connecting the designated points (arrows 3201 and 3202), both the main scanning direction and the sub-scanning increasing / decreasing direction are the same direction. And track. In FIG. 25, from the an point of the area “1”, an + 1 → ... → an +
It can be tracked as 7 → an + 8 (vertex of area “1”). Next, from an + 8 points, b1 in the width direction of area "1"
Move to the point and trace as b1 → b2 ... → b12 (vertex of area “2”), and from point b12 to c of area “2”
Move to 1 point. In this way, when the tracking is shifted to data in different areas, the directions 3205 and 3206 of the straight lines also change.
However, the line connecting the start point and the end point is detected and the direction of the straight line is changed. The data tracked in this way has the same area number.

Further, as indicated by the line 3301 in FIG. 26,
For example, the position data of the concave area such as the point b11 (not shown) before the point b2 to the point b12 next to b1 is not stored in the bitmap. However, as shown in FIG. 27, when the start point and the end point are included, they are stored. Here, in FIG. 26, tracking may not be possible at the portion 3302 where the sides 3304 and 3306 of the quadrangle intersect. Such a case will be described with reference to FIG. Note that point a in FIG.
1 and a2, b1 and b2 and b3 have different lines, and a1 and b1, and a2 and b2 have the same position.
According to the above search method, as shown in FIG.
It can be tracked as → a2 → a1, but in the case shown in FIG. 28 (b), it is tracked as b1 → b2 → b3 and does not move to the point a, and cannot be tracked.

Therefore, in FIG. 26, after tracing to the end 3303 of the side 3304, the tracing back is performed while erasing data and tracing. When the data is changed by moving back from the side 3304 to the intersection 3302 and tracking (data 33
05) Move to another side 3306 and trace while changing to unified data.

The data of the side 3306 is the intersection 33.
The deleted portion may be tracked and erased when the data 3305 of 02 is reached. In addition, in FIG.
When the white circle is the area “1”, the black circle is the area “2”, and the mesh circle is the area “3”, the area processing is not performed for the areas “1” and “2”, and the area number after the tracking is The area may be changed to “3”, the area number “3” may be processed, and the area numbers “1” and “2” may not be processed.

Thereafter, this tracking process is repeated, and the area data of the area "4" is stored in the bit map memory by using the areas "1", "2" and "4". In this case, the maximum value max-2 of the area number is the maximum number of usable areas. In addition, in the process of deleting the data on the sides 3304 and 3306 in FIG. 26, the maximum value m of the area number is
ax is the maximum number of usable areas.

[0044]

As described above, according to the first aspect of the invention, the refraction point is set so that the start point and the end point are in the center of the rectangular region in the width direction and the rotation direction with the adjacent straight line is set. Since the quadrangle region is created so as to be the apex of the quadrangle region, the refraction point does not become the center of the quadrangle region in the width direction of the quadrangle region, and therefore, the angle between two adjacent lines draws a thick line with an acute angle. In this case, it is possible to prevent the refraction point from becoming an unnatural image.

According to the second aspect of the present invention, the area where the refraction point is smoothed is created, and the starting point position and the ending point position in the main scanning direction of one area including the rectangular area adjacent to this area are created. , When a start point position and an end point position of each area in the main scanning direction are stored and an area signal is generated, even if a new inflection point area is created in order to smooth the inflection point, a blank may occur. Can be prevented.

According to the third aspect of the present invention, by tracing the contour line of the rectangular area adjacent to the area where the refraction point is smoothed, the starting point position and the ending point of one area including these areas in the main scanning direction. Since the position is created, a blank occurs even if a new refraction point area is created in order to smooth the refraction point when the start and end positions of each area in the main scanning direction are stored and the area signal is generated. Can be prevented.

According to the fourth aspect of the present invention, the input point is located on the contour line of the shape of the line having a thickness from the point input by the first input means. The shape of the connection portion does not form an acute angle and a line is not formed at a position away from the point, and it is possible to prevent the formation of an unnatural line.

According to the fifth aspect of the present invention, when a line having a thickness is drawn by the area processing, a plurality of areas are combined to create an area. Therefore, the processing can be performed without obtaining the intersection of the lines. Is enabled, which facilitates processing.

According to the sixth aspect of the present invention, when a line having a thickness is drawn by the area processing, a plurality of areas are temporarily used. Therefore, there is a portion where the area processing cannot be performed due to the overlapping of the areas. Will not do. As a result, even if a new refraction point region is created, no blank is produced.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating an embodiment of an image processing apparatus according to the present invention.

FIG. 2 is a block diagram showing a digital copying machine including the image processing apparatus of FIG.

FIG. 3 is a flowchart for explaining sharpening processing of a thick line inflection point.

FIG. 4 is an explanatory diagram showing designated coordinates of a thick line.

5 is an explanatory diagram showing a connecting direction of a straight line based on designated coordinates in FIG.

6 is an explanatory diagram showing a rotation direction of a straight line based on designated coordinates in FIG.

FIG. 7 is an explanatory diagram showing the relationship between the designated coordinates in FIG. 4 and a rectangular area.

FIG. 8 is an explanatory diagram showing a relationship between another designated coordinate and a rectangular area.

FIG. 9 is an explanatory diagram comparing the refraction angles of the conventional example and the present example.

10 is an explanatory diagram showing thick lines in the case shown in FIG. 7. FIG.

FIG. 11 is an explanatory diagram showing thick lines in the case shown in FIG.

FIG. 12 is a flowchart for explaining a rounding process for a refraction point of a thick line.

FIG. 13 is an explanatory diagram showing designated coordinates of a thick line.

FIG. 14 is an explanatory diagram showing a rectangular area when the number of designated straight lines is an even number.

FIG. 15 is an explanatory diagram showing a rounding region for the image of FIG.

16 is an explanatory diagram showing a rounding area for the image of FIG. 13;

17 is a timing chart showing a region signal of the rounded region of FIG.

FIG. 18 is an explanatory diagram showing a rounding area when the number of designated straight lines is an even number.

FIG. 19 is an explanatory diagram showing a rounding area when the number of designated straight lines is an even number.

FIG. 20 is an explanatory diagram showing a square area when the number of designated straight lines is an even number.

FIG. 21 is an explanatory diagram showing refraction points.

22 is an explanatory diagram showing a region in the case where the refraction points of FIG. 21 are flattened.

FIG. 23 is an explanatory view showing a thick line in which the refraction points are flatly cut.

FIG. 24 is an explanatory diagram showing contour line data of the area of FIG. 22;

25 is an explanatory diagram showing a method of tracking the contour line data of FIG. 24. FIG.

FIG. 26 is an explanatory diagram showing a case where tracking is not possible.

FIG. 27 is an explanatory diagram showing end point data.

28 is an explanatory diagram showing in detail the case where tracking is not possible in FIG.

FIG. 29 is an explanatory diagram showing a region signal when there is one area.

FIG. 30 is an explanatory diagram showing a region signal when there are two areas and the processing contents are different.

FIG. 31 is an explanatory diagram showing a region signal when there are two areas and the processing contents are the same.

FIG. 32 is an explanatory diagram showing thick lines.

FIG. 33 is an explanatory diagram showing a thick outline of FIG. 32.

FIG. 34 is an explanatory diagram showing designated coordinates and contour lines.

FIG. 35 is an explanatory diagram showing an example of processing for smoothing a refraction point.

FIG. 36 is an explanatory diagram showing refraction points.

FIG. 37 is an explanatory diagram showing a conventional refraction angle.

[Explanation of symbols]

 102 image processing unit 104 display / coordinate instruction unit 106 CPU 204 create unit 209 area signal generation unit

Claims (6)

[Claims] 1. A start point of an input thick line, one or more refraction points, a straight line connecting a start point and a refraction point based on an end point and a width, a straight line connecting a refraction point and a refraction point, and a straight line connecting a refraction point and an end point. In an image processing device that draws a thick line by creating a plurality of rectangular areas according to the input width, rotate the adjacent straight line so that the start point and the end point are in the center of the rectangular area in the width direction. An image processing apparatus comprising: a rectangular area creating unit that creates a rectangular area based on a direction so as to be a vertex. 2. The input point of a thick line, one or more refraction points, a straight line connecting the start point and the refraction point based on the end point and the width, a straight line connecting the refraction point and the refraction point, and a straight line connecting the refraction point and the end point. In an image processing device that draws a thick line by creating a plurality of quadrilateral areas according to an input width, an area for smoothing the inflection point is created, and a main area of one area including a quadrilateral area adjacent to this area is created. Between a position creating means for creating a start point position and an end point position in the scanning direction, a storage means for storing the start point position and the end point position created by the position creating means, and a start point position and an end point position stored in the storage means. And an area signal generating unit that generates an area signal that becomes active at, and draws a thick line by drawing a section where the area signal becomes active. 3. The position creating means traces a contour line of a quadrangle region adjacent to the region where the inflection point is smoothed to thereby start and end positions in the main scanning direction of one region including these regions. The image processing apparatus according to claim 2, wherein 4. An image processing apparatus, comprising: a reading unit that photoelectrically reads an original image and a display unit that displays the image read by the reading unit; and an image processing apparatus that performs a predetermined process and outputs the image. First input means for inputting a starting point, a bending point and an ending point of the line as a position of the line for drawing a line having a thickness with respect to the displayed image; and a starting point, a bending point and an ending point of the line First storage means for storing position information of the line, second input means for inputting line thickness information, second storage means for storing the line thickness information, the first and Calculation means for performing calculation based on the information stored in the second storage means, and calculating a region of a line having a thickness connecting the points input by the first input means with a straight line; Image to be processed by Processing means,
An image processing apparatus comprising: 5. The image processing apparatus according to claim 4, wherein the calculation unit creates an area by combining a plurality of areas. 6. A tracking means for tracking a contour for integrating into a single area after creating a area by combining a plurality of areas, and a changing means for changing data while tracking by the tracking means. The image processing device according to claim 4, further comprising: